Mana Sornjam (Thai: มานะ สอนแจ่ม; born December 7, 1965), known professionally as Manasak Sor Ploenchit (Thai: มานะศักดิ์ ส.เพลินจิต), was a Thai professional Muay Thai fighter. He was a two-weight Rajadamnern Stadium champion who was famous during the 1980s and 1990s.

Manasak was born in the Rayong Province where he started Muay Thai during the mid 1970s. He rapidly reached the Bangkok circuit where he had a few fights under the name Manasak Asawamongkol, he then went back to fight in eastern Thailand where he became regional champion. Manasak then joined the Sor Ploenchit camp in Bangkok under the teaching of Sathien Sathiensut and became a successful fighter.^[2]

During his prime in the 1980s Manasak was known as a highly skilled fighter with a complete arsenal and some of the sharpest eyes in the ring. He beat many notable fighters of his era such as Kongtoranee Payakaroon, Saencherng Pinsinchai, Sangtiennoi Sor.Rungroj, Panomtuanlek Hapalang, Jaroenthong Kiatbanchong or Chanchai Sor Tamarangsri.

At his peak Manasak received fight purse as high as 120,000 baht. He shortly retired in early 1986 and came back later that year.^[3]

As of 1987 Manasak was a two time Rajadamnern Stadium champion and won the Thailand King's belt.^[4]

After his fighting career Manasak went back to his hometown where he owns a shop with his family.

• Rajadamnern Stadium
  • 1983 Rajadamnern Bantamweight (118 lbs) Champion
  • 1987 Rajadamnern Featherweight (126 lbs) Champion

• Professional Boxing Association of Thailand (PAT)
  • 1987 Thailand Super Bantamweight (122 lbs) Champion

Awards

• 1987 Sport Writers Association Fight of the Year (vs. Saencherng Naruepai)

Muay Thai Record (Incomplete)

Date	Result	Opponent	Event	Location	Method	Round	Time
1991-07-24	Loss	Nuengsiam Kiatwichian	Rajadamnern Stadium	Bangkok, Thailand	KO	4
1991-06-05	Draw	Nuengsiam Kiatwichian	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1991-	Loss	Jack Kiatniwat	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1991-	Loss	Jack Kiatniwat	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1991-02-20	Loss	Twaeechai Wor. Preecha	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1990-11-23	Win	Kyoji Saito	AJKF "INSPIRING WARS 3rd"	Tokyo, Japan	TKO	5	2:23
1990-11-08	Loss	Nuengsiam Kiatwichian	Rajadamnern Stadium	Bangkok, Thailand	TKO (Doctor Stoppage)	4
1990-03-21	Draw	Poonsawat Wor.Singsanae	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1990-03-01	Win	Sombat Sor.Thanikul	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1990-01-29	Draw	Sombat Sor.Thanikul	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1989-09-27	Loss	Jack Kiatniwat	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1989-08-15	Loss	Namphon Nongkee Pahuyuth	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1989-07-09	Loss	Sangtiennoi Sor.Rungroj[5]	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1989-06-03	Win	Jaroenthong Kiatbanchong		Trang Province, Thailand	TKO	3
1989-05-02	Loss	Saencherng Narupai	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1989-04-07	Win	Petchdam Lukborai	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1989-03-06	Win	Chanchai Sor Tamarangsri	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1988-12-07	Win	Sanit Wichitkriangkrai	Rajadamnern Stadium	Bangkok, Thailand	Ref.stop (Sanit dismissed)	4
1988-09-07	Win	Tuanthong Lukdecha		Bangkok, Thailand	Decision	5	3:00
1988-06-24	Loss	Namphon Nongkeepahuyuth	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1988-04-08	Loss	Jomwo Chernyim	Lumpinee Stadium	Bangkok, Thailand	KO	3
1988-03-04	Loss	Chanchai Sor Tamarangsri	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1987-11-27	Loss	Panomtuanlek Hapalang	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
For the Lumpinee Super Bantamweight (122 lbs) title.
1987-10-27	Loss	Chamuekpet Hapalang	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1987-09-22	Draw	Chanchai Sor Tamarangsri[6]	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1987-07-31	Win	Panomtuanlek Hapalang	Lumpinee Stadium	Bangkok, Thailand	KO	1
1987-06-19	Win	Saencherng Narupai	Lumpinee Stadium	Bangkok, Thailand	TKO (Punches)	2
Wins the Thailand Super Bantamweight (122 lbs) title.
1987-05-31	Win	Saphanphet Kiatphetnoi	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
Wins the Rajadamnern Featherweight (126 lbs) title.
1987-03-23	Win	Sombat Sor.Thanikul	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1987-02-26	Win	Sangtiennoi Sor.Rungroj	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1986-12-22	Win	Kingsaknoi Saknarin		Bangkok, Thailand	Decision	5	3:00
1986-11-11	Loss	Jomwo Chernyim[7]	Lumpinee Stadium	Bangkok, Thailand	KO (Punches)	3
1986-04-03	Loss	Jomwo Chernyim	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1986-02-10	Win	Sangtiennoi Sor.Rungroj	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1985-11-22	Loss	Jomwo Chernyim	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1985-10-24	Loss	Chamuekpet Hapalang	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1985-09-23	Win	Jampatong Na Nontachai	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1985-09-02	Win	Jomwo Chernyim	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1985-04-02	Win	Pornsaknoi Sitchang	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1985-01-08	Win	Bangkhlanoi Sor.Thanikul	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1984-11-21	Loss	Nikhom Phetphothong	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
For the vacant Rajadamnern Bantamweight (118 lbs) title.
1984-06-29	Loss	Samransak Muangsurin	Lumpinee Stadium	Bangkok, Thailand	KO	3
1984-05-10	Draw	Panmongkol Hor.Mahachai	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1984-04-10	Win	Kongtoranee Payakaroon	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1984-01-27	Win	Panmongkol Hor.Mahachai		Bangkok, Thailand	Decision	5	3:00
1983-12-28	Win	Nikhom Phetphothong	Rajadamnern Stadium	Bangkok, Thailand	KO	3
Wins the Rajadamnern Bantamweight (118 lbs) title.
1983-11-11	Win	Palannoi Kiatanan		Bangkok, Thailand	Decision	5	3:00
1983-08-26	Loss	Jakrawan Kiatsakthewan	Lumpinee Stadium	Bangkok, Thailand	Referee Stoppage	4
1983-06-15	Win	Sakchai Singkhiri	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1983-05-25	Win	Piyarat Sor Narongmit		Bangkok, Thailand	Referee Stoppage	3
1983-04-05	Loss	Palannoi Kiatanan		Bangkok, Thailand	Decision	5	3:00
1983-03-04	Loss	Jakrawan Kiatsakthewan		Bangkok, Thailand	Decision	5	3:00
1983-01-07	Win	Roengnarong Thairungrueng [8]	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1982-12-07	Win	Fonluang Luksadetmaephuangthong		Bangkok, Thailand	Referee Stoppage	5
1982-11-02	Win	Wanmai Phetbundit		Bangkok, Thailand	KO	5
1982-09-07	Win	Falikhit Sitmanathep	Lumpinee Stadium	Bangkok, Thailand	KO	4
1982-07-09	Loss	Sornsil Sitnoenpayom	Lumpinee Stadium	Bangkok, Thailand	Decision	5	3:00
1982-06-10	Win	Chanaisuk		Pattaya, Thailand	Decision	5	3:00
1982-05-19	Loss	Wanmai Phetbundit	Rajadamnern Stadium	Bangkok, Thailand	Decision	5	3:00
1982-04-07	Win	Arthit Somsakanping		Bangkok, Thailand	Decision	5	3:00
1982-02-12	Win	Pungthong Fairtex		Bangkok, Thailand	KO	3
1981-11-23	Win	Roengchai Thairungrueng		Bangkok, Thailand	Decision	5	3:00
Legend:   Win   Loss   Draw/No contest   Notes